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<blockquote data-quote="Revet" data-source="post: 223016" data-attributes="member: 17612">I am just starting to learn flash photography so I am a little confused on how the camera with flash is working together to get a good exposure.I tried some practice TTL shots using manual camera mode (i.e. I am setting F stop and shutter speed while watching the meter on the camera).&nbsp; With my flash turned off, I adjusted my aperture and shutter speed until I got the needle in the middle on the viewfinder and took the shot.&nbsp; Then I turned my flash on and repeated the process.&nbsp; It took the exact same settings to get the needle in the middle (correct exposure according to camera).&nbsp; So in both cases the needle was in the middle (correct exposure) but the result was an underexposed shot without the flash (can be normal for my camera) and a better one with it.&nbsp; I don't get this.&nbsp; What is going on with the metering process in this example (with and without flash)?&nbsp; Also why is it able to meter with the flash on before you even push the shutter release down so that pre-flashes are fired??&nbsp;&nbsp; Also, when I take the picture, I don't see pre-flashes.&nbsp; Are these so close to the primary flash that you can't detect them?I'm using an SB-700 on a D3100.&nbsp; I like to know how things work, not just trust that they will.</blockquote>

[QUOTE="Revet, post: 223016, member: 17612"] I am just starting to learn flash photography so I am a little confused on how the camera with flash is working together to get a good exposure. I tried some practice TTL shots using manual camera mode (i.e. I am setting F stop and shutter speed while watching the meter on the camera). With my flash turned off, I adjusted my aperture and shutter speed until I got the needle in the middle on the viewfinder and took the shot. Then I turned my flash on and repeated the process. It took the exact same settings to get the needle in the middle (correct exposure according to camera). So in both cases the needle was in the middle (correct exposure) but the result was an underexposed shot without the flash (can be normal for my camera) and a better one with it. I don't get this. What is going on with the metering process in this example (with and without flash)? Also why is it able to meter with the flash on before you even push the shutter release down so that pre-flashes are fired?? Also, when I take the picture, I don't see pre-flashes. Are these so close to the primary flash that you can't detect them? I'm using an SB-700 on a D3100. I like to know how things work, not just trust that they will. [/QUOTE]

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